A data transmission method and a unit for performing data transmission. Where the corrugate tube is oval in section, it is fixed inside a rotating member 33 with a circular outer periphery, and the rotating member is held rotatably in its circumferential direction inside a body of the fixing tool 1. If an idle signal indicating no ensuing autonegotiation period is detected, the switching action is terminated and the input port assignment is maintained for as long as the link is detected. In response to a request to retrieve a data record or group of related records, such as all contacts having a given first and last name, a determination is made to which bucket the data record or at least a portion of group of related records are stored in. The presence of the functional thermoplastic polymer makes it possible to improve the compromise of performances, which are the handling and the grip, of a tire having a tread that is based on such a composition. Additionally a center double-edged grip member can be added creating an expanded functionality for pairs of objects such as skis.